The State of the Diamond Market: A Conversation with Paul Zimnisky

In our premiere episode, host Colleen Rooney, Chief Corporate Affairs & Sustainability Officer at Signet Jewelers is joined by renowned global diamond industry analyst, Paul Zimnisky.
The two discuss the current state of the diamond market, highlights from 2025 and what to watch for in 2026.  

They also explore how geopolitical conflict is reshaping the industry, who’s winning in jewelry right now and why, and what AI can teach the industry in coming years.  

Tune in for a compelling look at the past, present and future of jewelry.  

Beyond The Vault is a podcast by Signet Jewelers (SIG): https://signetjewelers.com/ 

Creators and Guests

Host

Colleen Rooney

Guest

Paul Zimnisky

Paul Zimnisky, CFA is a leading global diamond industry analyst based in the New York City metro area specializing in global diamond supply/demand fundamentals and the companies operating within the industry. His research and analysis on the diamond industry, which includes natural as well as lab-grown diamonds, is used by financial institutions, management consulting firms, private and public corporations, governments, intergovernmental organizations and universities including: HSBC, UBS, Scotiabank, Fidelity Investments, KPMG, Deloitte, Boston Consulting Group, De Beers, Rio Tinto, Tiffany & Co., Cartier, The International Monetary Fund and the governments of Canada, South Africa and Botswana. He has a monthly subscription-based diamond industry research report called State of the Diamond Market, a proprietary rough diamond price index called the Zimnisky Global Rough Diamond Price Index and a regular podcast called the Paul Zimnisky Diamond Analytics Podcast which is available on iTunes and Spotify. Paul is a regular contributor to industry-leading trade journals and he is often interviewed and quoted by prominent media outlets including: The New York Times, The Wall Street Journal, Reuters, The Financial Times, Bloomberg, The Economist, Vogue, The Globe and Mail, Agence France-Presse, The Times of India, The South China Morning Post, Xinhua and China Daily. In addition, Paul is often invited to speak at institutional investor and industry conferences around the world and has given keynote presentations on the diamond industry in North America, South America, Europe, Africa and Asia. Prior to his work as an independent diamond industry analyst, Paul worked in the financial markets industry for over 10 years in capacities including buy-side analyst, high-frequency trader and exchange-traded fund developer. He conceptualized and co-founded a company to bring to market the first diamond industry and mining equipment ETFs, which were listed on the New York Stock Exchange Arca. Paul is a graduate of the University of Maryland’s Robert H. Smith School of Business with a Bachelor of Science in finance. He is a CFA® charterholder and is a member of the CFA Society of New York. He can be reached at [e-mail] or [phone] and followed on X at @paulzimnisky.

What is Beyond The Vault?

Go Beyond the Vault for exclusive access to the jewelry industry like never before. Hosted by Colleen Rooney, Chief Corporate Affairs & Sustainability Officer at Signet Jewelers, this podcast shines a light on every facet of the industry – from ethical sourcing and sustainability to cutting-edge design and leadership. Join us every month for rare, unfiltered conversations with industry insiders, key decision makers and top jewelry experts. From the mine to the boardroom, we’ll take you across the globe, revealing the people, passion, and purpose shaping the future of jewelry.